exhaust query

thamesroverp6

thamesroverp6

Member
Hi all, I have purchased a 3500s rolling chassis of which has the orig exhaust in it
Both pipes have resonators? just from where they would bolt up to the manifolds.
Can someone tell me what these actually are?
I was going to use these (in part) as a twin set up (yet to design) for the 3500 auto I have.
would using these and say omitting the middle or even the end muffler box on mine, be of any benefit?
Any advice would be great thanks
Karl
 
original 3500s as well as 3500 autos as far as I am aware .all had both exhaust manifolds feeding to single pipe exhaust system. checking parts book etc will elicit data needed though many here can offer probably more detailed info such a part Numbers as even pics/drawings.
I understand more than one owner though has altered system to enable twin exhausts at rear. better to see if they can provide guidance as I assume this is what you seek. there is mention of a mixing /cross over as well 'X' that seems to provide some benefit but as i remain standard system I cannot vouch if this indeed provides and real gains performance side though I am sure from an aesthetic view and possibly 'sound'? we can get an improvement.
after all when manufactures build cars they nearly always consider cheapest route for mass production as opposed high end market with small sales and significant profit margins.
 
Thanks for that info, yes I wish to have twin exhausts protruding out the rear (one on the left and one from the right) and have
read I may need a x or a H to "balance" the sound.
I don't wish to have a pipe joining into the existing at the rear so ill have to think about some how to do it, so any ones input much appreciated :)
I'm not after any performance gains (although thatd be acceptable) just a better sound (maybe louder) so that that utilising the two
resonators may help with this?
 
thamesroverp6 said:
Thanks for that info, yes I wish to have twin exhausts protruding out the rear (one on the left and one from the right) and have
read I may need a x or a H to "balance" the sound.
I don't wish to have a pipe joining into the existing at the rear so ill have to think about some how to do it, so any ones input much appreciated :)
I'm not after any performance gains (although thatd be acceptable) just a better sound (maybe louder) so that that utilising the two
resonators may help with this?
Click to expand...

Have a look at this engine masters episode. It seems its all about the sound, not power gains....

 
I've been binge watching Engine Masters lately, really enjoy it. Did you know notice it's sponsored by AmsOil? :D
I've also been planning an X pipe crossover as part of a dual system ever since reading David Vizard's books, it should come to fruition in the not too distant future!
Jim
 
I built a bespoke system for my P6B. I think 1.25" primaries out of heads into two 2" collectors which join into a single 2.5" maon with two truck resonators. It is very effective but loud... sound like an aeroplane. It is essentially a straight through system. There might be some 1.5" bits between the primaries and collectors come to think of it. Not a lot of work to get it to fit but trying to get the engine in and out took some contemplation till I put some joints in it so I could get the bits out of the way. I decided against left and right exhausts as the right side has the battery where the last can goes and the pipe runs underneath all the fuel tank gear, a lot of which is plastic,,,
 
looking at the video link shown. was clear there is a slight gan lower part to power curve but we lose a fraction using upper end ( high revs) .so essentially its all about tone and sound output plus looks.
twin pipes do look better. trying to get second run under other side is not easy as fuel lines and battery are there. no doubt exactly why Rover didn't use twins apart from added costs. probably a very small market for rover p6 V8 cars as if a custom made system was available at reasonable cost it would tempt a few .not all are 'keep it all as original' geeks. as as not real change to power output ought to have little bearing on insurance but may either add or detract form value of car itself depending on attitude of a buyer. ideally any system now needs to be made in stainless .... adding in heat shielding for fuel lines etc and it starts to get complicated and expensive. however I am sure a few have done this so maybe they can give a detailed explanation. either way its really down to us ,the owners to be happy with our pride and joy so each must decide for self. I understand Rover would have opted for quiter exhaust to suit its market at time of production.
these days half the fun for many is the sound output one can get with a nice burbling V8. deeper tones can add to sense of power and enjoyment. a more rasping note such as aston. ferrari etc is in itself a different aspect that many enjoy too. so pay your money and take your choice. sadly fund here depleted now retired so more of case of make do and mend . now if only that lottery ticket...
 
yes a lottery ticket win of some substantial amount would be awesome.
I'm afraid "originality" might be compromised though?
Thanks guys, i have wondered how to route the right hand side piping and have heard people moving the battery aside
to allow for the box/pipe, but didn't want to melt the pipes either.
I remember a club member having this beautiful cream mark 1 zephyr fitted with a v8 and having twin pipes,
being mesmerised by how it looked/sounded, so want the same on my p6b.
 
sure I have seen clip of a Rover p6 using twin pipes somewhere... just found an advert by Maniflow (ltd) whom do exhaust for racing cars etc .sadly nothin on offer for ours. bet if it had something it would be excellent. just found two clips of twin exhausts being shown off for sound on U-tube ( uk) so it is possible .maybe the v8 engine site has possibilities?
 
there is a Newcastle (AUS) dealer - Denis Trigg who has made a few up. He might be able to send you the bits for self installation... Try Triggs motors in Toronto.
 
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